Electrical connecting member



June 2, 1931. .1. M. AUFIERO ELECTRICAL CONNECTING MEMBER F iled Nov.

N m T. N T M 1 A TTORNEYS.

AMI/WW Patented June 2, 1931 UNITED STATES PATENT ol-rlcr I JOHN M. .A'UFIEIR-O, OF BBOOEKLYN, NEW YORK, ASSIGNOB TO E. A. LABORATORIES, INC., OF BROOKLYN, NEW YORK, A. CORPORATION OF NEW YORK uncritical. commc'rme MEMBER Application filed November 18, 1927. Serial No. 234,062.

This invention relates to a connecting member and aims, specifically, to provide an improved device of this character for use in connection with electrical appliances and, '5 particularly, warning horns of the automobile type, it being obvious, however, that the invention may be employed in other associations. An object of the invention is that of 10 furnishing a connecting member of improved construction and by means of which two connecting elements of an electrical circuit may be coupled or detached readily from each other and which, when so attached, will re- 15 main connected without danger of becoming accidentally separated.

It is a further object of the invention to I provide a device of this character which will be of extreme simplicity and be capable of being constructed economically, but which will incorporate rugged qualities permltting of its 'use over long periods of time with freeddm from difficulties, aside from the fact that the connecting member may be readily laced in any desired association.

With these and further objects in mind reference is had to the attached sheet of drawings illustrating several practical embodiments of the invention and in'which:

Figure 1 is a perspective view of the upper end of a warning horn of the automobile type and showing a connecting member of the present invention appliedthereto.

Fig. 2 is a face view of thestrip from which the connecting member is formed and showing the same subsequent to being blanked 'out, but prior to shaping.

Fig. 3 is an enlarged edge view of the connecting member.

a connectin member embodying the constructions o the present invention.

Fig. 5 is an enlarged perspective view of a connecting member of the order shown in Fig. 1.

.and Fig. 9 is a view similar to Fig. 4, but show- Fig. 4 isa transverse sectional view of.

blies ofa similar character shown in Fig. 1,

ing the construction illustrated in Figs. 7 and 8.

With primary reference to Figure 1, 10 indicates the trumpet of a horn with which there is associated a flanged diaphragm assembly 11, the diaphragm (notshown) being actuated by a suitable mechanism by means of an armature shaft, which latter mounts anarmature 12 and commutator 13. Adjacent these elements there maybe provided motor coils 14, the parts being connected so that, when a current passes through the several windings, the armature will be revolved re am the horn diaphragm. The foregoing is merely illustrative of the association in which a connecting member of th present invention may be placed.

Thisconnecting member assembly may, as shown, include a mounting block 15 of suitable insulating material, which is conveniently secured to a supporting surface 16 as, for example, byabolt 17. In order to prevent sidewise shifting of the block with respect to the mountin surface therefor, the

latter is preferably ormed with upwardly struck lug portions 18 which bear against the edges of the block at o posite sides of the center thereof as define by the securing member 17, it being thus obvious that a suitablia anchoring structure is provided economica ly.

One part of the connecting member, per se, embraces conveniently, as shown in Figures 4 and 9, a stem or plug 19 having a tapered end portion 20 to the rear of which an annular groove 21 is formed. The other part of the connecting member includes, according to the present invention, preferably astrip 22 formed with an opening 23. This strip is furthermore rovided with a downwardly extending end tongue 25, the, latter being conveniently disposed between'the opening thereof'and the downwardly struck end portion. The body of the strip is inwardly bulged and according to the showing in Figures 1, 2 and 5, this bu ging may be in the form of a pair of isoportion 24 and an up-struck lated and aligned portions 26 extending centrally of the strip. According to the showing in Figure 6, this bulged portion may optionally be in the form of a single continuous depression, as at 27 or, as shown in Figures 7, 8 and 9, suchfportion may be in the form of a flange 28 adjacent one of the side edges of the strip body.

Aistrip thus formed is bent in any suitable manner to provide 'a pair of substantially semi-circular enclosing portions 29 connected and urged towards each other by a portion 30 which exerts a spring influence. The semicircular, or enclosing portions 29 are so proportioned that the rib structure provided by the inwardly bulged portion or portions of the stripsdefines a space substantially equal in diameter to the diameter of the groove 21.

lVith a View to securing the strip portion of the connectingmember to the mounting block or othersurface with which it is' associated, the latteris preferably formed with slot orcut-out portions 31 (inthe present those illustrated, might be resorted to with- 1 out departing from the spirit of the invention as defined by the claim.

Having described my invention, what I claim as new and desire to secure by Letters Patent is:

A connecting member including a strip of conducting material having portions of its surface bulged inwardly and said strip being bent adjacent such portions to provide comexemplification adjacentfleach of its ends) l and of a depth sufl'icient to accommodate the downwardly extending portion 24 at the end of the strip. As shown in Figures 7 and 9, an anchoring member in the nature of a rivet 32 is secured to theblock 15 .an-d has its shank extending through'the opening 23, the end of this. shank being'headed. As a con sequence it will be apparent that the stripportionof the connecting member cannot,

turn with respect to the mounting block, in-

cident to the anchoring-Inember32 and the} downwardly struck portion 24;,which coope r-v ate to prevent such anoccurrence.

As shown in Figure 1, with the connecting i member assembly in position, the ends of the leads, 33 extending from the coils 12 may be passed under the tongues 25, which are thenstruck smartly to deformthe same, as. 1 well as the end of the wire. which passes thereunder, thus lockingthese elements against accidental detachment. .As indicated in Figure 3, however, if desired, the end of the lead may pass into the spacedefined by the central connecting portion 30, at which point tlns lead may be soldered, as at 3 4,, such I obvious thatthe connecta construction it is ing portion will berigidified additionally i1 1 order to prevent a springing of ,the'seniicircular portions 29 to a accidental detachment of the point 1 at 'whi'chff stem 19 from the connecting"strip might occur. 'Such strengthening of the connectingportion will also follow where the inwardly bul'ge'dpo'rtion or rib extends throughout the sem1-,cir I tion as shown at 27 in Figure 6.

A cular portions, as well as the connecting por means of which the objects of the present in, I

vention are achieved, Itwill be understood that numerous changes in construction and I re-arrangement of the parts, additional to 

